Anthropic files S-1: IPO expected between Nov 2026 and Feb 2027, valuation up 15x
alliekmiller · x · 2026-10-26
Anthropic has filed its Form S-1 with the SEC, officially starting the IPO process.
- Based on analysis of 6 recent tech IPOs, Allie Miller estimates the listing between Nov 17, 2026 and Feb 28, 2027, barring a Cerebras-style withdrawal
- Anthropic's valuation has grown 15x since last summer; RSUs vest over 4 years with a 1-year cliff
- An employee granted $4M in RSUs 18 months ago would already hold over $20M at today's price
- The departure of two Claude Code core builders last week was widely read as an IPO signal
- Miller jokes SF homebuyers should act before thousands of new millionaires are minted
Related event: Anthropic Files S-1, Kicks Off Nasdaq IPO Under Ticker ANT(63 posts)→
More from Companies & People
- Anthropic's S-1 founders' letter 'marked safe from using Claude' draws skepticism — xeophon · 2026-10-26
- Anthropic S-1 reveals how AWS, Google and Microsoft cloud deals drive Claude enterprise adoption — BenBajarin · 2026-10-26
- Mystery app icon spotted on Apple exec's unreleased foldable iPhone sparks guessing — demian_ai · 2026-10-26
- Shopify design lead on AI-era workflow: designers are becoming full-stack editors — KlausCodes · 2026-10-26
- Anthropic mocked for warning of existential AI risk while pouring $750B into accelerating it — R4nsack · 2026-10-26
- AI Dev NYC lands Nov 30–Dec 1 with Andrew Ng, Yann LeCun fireside chat on world models — DeepLearningAI · 2026-10-26